.div-height-30 {
    height: 30px;
}

.div-back {
    background-color: #F2F2F2;
    width: 100%;
    height: auto;
}

.top {
    position: fixed;
    top: 30px;
    left: 0;
    right: 0;
    width: 100%;
    height: 500px;
    z-index: -1;
}

.title {
    position: absolute;
    top: 80px;
    left: 80px;
    color: white;
    font-size: xx-large;
}

.title-text-shadow {
    text-shadow: 5px 5px 5px #3E3E3E;
}

.code_div {
    position: absolute;
    width: 450px;
    height: 320px;
    background: rgba(0, 0, 0, 0.3);
    top: 100px;
    right: 60px;
    z-index: 1;
    overflow: hidden;
}

.area {
    background: white;
    width: 260px;
    height: 260px;
    text-align: center;
    margin-left: 10px;
    margin-right: 10px;
    position: relative;
    z-index: 1;
}

#block-list li {
    display: inline-block;
    zoom: 1;
    *display: inline;
}

.card {
    border: 0px solid #696;
    padding: 30px 0;
    text-align: center;
    -webkit-border-radius: 8px;
    -moz-border-radius: 8px;
    border-radius: 8px;
    -webkit-box-shadow: #666 0px 0px 10px;
    -moz-box-shadow: #666 0px 0px 10px;
    box-shadow: #666 0px 0px 10px;
}

.card-gray {
    position: absolute;
    top: 0;
    left: 0;
    width: 260px;
    height: 260px;
    z-index: 2;
    text-align: center;
    border-radius: 8px;
}

.content {
    width: 100%;
    max-width: 1200px;
    min-width: 960px;
    height: 300px;
    margin: auto;
    padding: 50px 100px;
}